2026 ICD-10-CM Diagnosis Code R48.9Unspecified symbolic dysfunctions

ICD-10-CM Codes›R00–R99›R47-R49›R48

ICD-10-CM R48.9
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

R48.9 is a billable ICD-10-CM diagnosis code for unspecified symbolic dysfunctions. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. Coders also document this condition as symbolic dysfunction. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Nervous system signs and symptoms.

Code Identity

ICD-10-CM Code
R48.9
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified symbolic dysfunctions
Short Description
Unspecified symbolic dysfunctions
Same as the full description in the CMS dataset.
Parent Code
R48
Dyslexia and other symbolic dysfunctions, not elsewhere classified

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR47-R49Symptoms and signs involving speech and voice
CategoryR48Dyslexia and other symbolic dysfunctions, not elsewhere classified
This CodeR48.9Unspecified symbolic dysfunctions

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Symbolic dysfunction

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Dysfunction
      • symbolic

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR SYM010
Nervous system signs and symptoms
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Mental Disorders

Mental disorders (or mental illnesses) are conditions that affect your thinking, feeling, mood, and behavior. They may happen over a short period of time or come and go. Some can be chronic (long-lasting). They can affect your ability to relate to others and function each day..

The full article covers:

  • What are mental disorders?
  • What are some types of mental disorders?
  • What causes mental disorders?
  • Who is at risk for mental disorders?
  • How are mental disorders diagnosed?
  • What are the treatments for mental disorders?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert R48.9 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
784.60 Symbolic dysfunction NOS
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About R48.9Overview

Is R48.9 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report unspecified symbolic dysfunctions on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Can R48.9 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the unspecified symbolic dysfunctions is established, that condition takes the principal position instead.

What is the ICD-9 equivalent of R48.9?

Under the General Equivalence Mappings, unspecified symbolic dysfunctions converts to ICD-9-CM 784.60 (symbolic dysfunction NOS). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.